PLS-00644: character set mismatch found at 'string' among result expressions in a CASE expression

PLS-00644: character set mismatch found at 'string' among result expressions in a CASE expression
Cause: In a CASE expression, the result expressions do not match in character set, and it is unclear which implicit conversion is required to correct the mismatch.
Action: Change the result expressions so that their character sets match.

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小智 2018-08-30 19:02

PLS-00644：CASE表达式中的结果表达式中' string ' 处发现的字符集不匹配,
.原因：在CASE表达式中，结果表达式在字符集中不匹配，并且不清楚需要哪个隐式转换来纠正不匹配。,
.操作：更改结果表达式，使其字符集匹配。,
.

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PLS-00644: character set mismatch found at 'string' among result expressions in a CASE expression

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